Ink-jet recording apparatus capable of reducing ink ejection width according to sheet width

An ink-jet recording apparatus comprising:

• a conveying belt that conveys a sheet;
• a plurality of line heads that are arranged spaced apart along a direction of conveyance of the sheet and sequentially eject respective different colors of ink droplets predetermined for formation of multicolor images to the sheet to form a multicolor image on the sheet;
• a sheet width sensor that is disposed upstream of the line heads in the direction of conveyance of the sheet and detects a width of the sheet;
• and
• a control device that comprises a processor and functions, through the processor executing a control program, as a controller that creates, for each of the line heads, a print queue indicating a queue of at least one print job for forming the multicolor image on the sheet, executes the print job in accordance with the print queue, and determines whether or not the width of the sheet detected by the sheet width sensor is smaller than a width of a sheet for use in the print job,
• wherein when determining that the width of the sheet detected by the sheet width sensor is smaller than the width of the sheet for use in the print job, the controller sets, on a basis of each of the line heads, width information indicating the detected width of the sheet in association with a print queue element not yet being executed in the print queue at the line head and executes, based on the width information set in association with the print queue element not yet being executed at each of the line heads, mask processing for reducing a size of a color image corresponding to the print queue element not yet being executed to the width indicated by the width information in a widthwise direction of the sheet.